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Finding the Fourth Proportional to 7,415.44, 10,178.79 and 6,557.34

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Solution

The fourth proportional to 7,415.44, 10,178.79 and 6,557.34 is: 9,000.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,415.44 : 10,178.79 = 6,557.34 : x
  2. Step 2: Convert to fraction form
    7,415.44/10,178.79 = 6,557.34/x
  3. Step 3: Cross multiply
    7,415.44x = 10,178.79 × 6,557.34
  4. Step 4: Simplify right side
    7,415.44x = 66,745,786.82
  5. Step 5: Solve for x
    x = 66,745,786.82/7,415.44
  6. Step 6: Final answer
    x = 9,000.92

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These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.